PLUG · Insider trading · 13F holders · Congress trades
Plug Power Inc (PLUG)
Who is buying and selling PLUG: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 7
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $510K
- Congress trades, 12 months
- 1
PLUG at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 1 PLUG insider filed 3 sales worth $510K on SEC Form 4, and no open-market purchases; 3 of the sales were pre-planned under Rule 10b5-1.
- 7 13F filers hold PLUG among their 50 largest positions, worth $8.6M combined. The biggest bets by portfolio weight are Headlands Technologies LLC (0.5%), Masters Capital Management LLC (0.4%) and Kieckhefer Group LLC (0.2%). In their latest 13Fs, 2 managers opened a new position and 0 added to one.
- Members of Congress have disclosed 18 PLUG trades since 2013, 0 purchases and 1 sale in the past year; the latest was Austin Scott (R-GA), selling $1K–15K on Jul 31, 2024.
- PLUG last closed at $1.42 on Oct 29, 2026.
PLUG insider trading
Between Aug 1, 2026 and Oct 29, 2026, 1 PLUG insider filed 3 sales worth $510K on SEC Form 4, and no open-market purchases; 3 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Oct 19, 2026 | Haycraft Benjamin | CSO & GM EMEA | Sale10b5-1 | 9,375 | $1.41 | $13K | SEC |
| Sep 22, 2026 | Haycraft Benjamin | CSO & GM EMEA | Sale10b5-1 | 200,000 | $2.14 | $428K | SEC |
| Sep 15, 2026 | Haycraft Benjamin | CSO & GM EMEA | Sale10b5-1 | 32,560 | $2.09 | $68K | SEC |
Who owns PLUG? Hedge funds and superinvestors
7 13F filers hold PLUG among their 50 largest positions, worth $8.6M combined. The biggest bets by portfolio weight are Headlands Technologies LLC (0.5%), Masters Capital Management LLC (0.4%) and Kieckhefer Group LLC (0.2%). In their latest 13Fs, 2 managers opened a new position and 0 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Headlands Technologies LLCInvestment manager | 0.5% | $4.8M | 1,763,652 | — | Q2 2026 |
| Masters Capital Management LLCHedge fund | 0.4% | $2.7M | 1,000,000 | +0.0% shares | Q2 2026 |
| Kieckhefer Group LLCWealth manager | 0.2% | $582K | 300,000 | -40.0% shares | Q3 2026 |
| HC Advisors, LLCWealth manager | 0.2% | $285K | 105,000 | — | Q2 2026 |
| Ursa Fund Management, LLCHedge fund | 0.0% | $203K | 75,000 | New | Q2 2026 |
| GPM Growth Investors, Inc.Wealth manager | 0.0% | $54K | 20,000 | +0.0% shares | Q2 2026 |
| Parametrica Management LtdInvestment manager | 0.0% | $22K | 11,439 | New | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 2, Q2 2026: 5). Screen PLUG in the grand portfolio →
PLUG stock trades by members of Congress
Members of Congress have disclosed 18 PLUG trades since 2013, 0 purchases and 1 sale in the past year; the latest was Austin Scott (R-GA), selling $1K–15K on Jul 31, 2024.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Aug 13, 2025 | Austin ScottR-GA · House | Sale | $1K–15K | Jul 31, 2024 | -44.3% |
| May 19, 2023 | Daniel S. GoldmanD-NY · House | Buy | $15K–50K | Apr 10, 2023 | -85.3% |
| Apr 17, 2023 | Daniel S. GoldmanD-NY · House | Sale | $15K–50K | Mar 6, 2023 | -89.9% |
| Feb 24, 2023 | Daniel S. GoldmanD-NY · House | Buy | $15K–50K | Jan 31, 2023 | -91.9% |
| Dec 12, 2022 | Chris JacobsR-NY · House | Sale | $1K–15K | Nov 8, 2022 | -90.7% |
| Sep 9, 2022 | Chris JacobsR-NY · House | Buy | $1K–15K | Jul 18, 2022 | -91.6% |
| Oct 15, 2021 | Austin ScottR-GA · House | Buy | $1K–15K | Oct 15, 2021 | -95.6% |
| Oct 15, 2021 | Austin ScottR-GA · House | Buy | $1K–15K | Sep 7, 2021 | -94.9% |
| Aug 13, 2021 | Austin ScottR-GA · House | Sale | $1K–15K | Jul 16, 2021 | -94.7% |
| May 18, 2021 | Austin ScottR-GA · House | Sale | $1K–15K | Apr 9, 2021 | -95.7% |
| Apr 1, 2021 | Austin ScottR-GA · House | Buy | $15K–50K | Mar 19, 2021 | -96.4% |
| Apr 1, 2021 | Austin ScottR-GA · House | Buy | $1K–15K | Mar 17, 2021 | -96.5% |
| Apr 1, 2021 | Austin ScottR-GA · House | Buy | $1K–15K | Mar 4, 2021 | -96.6% |
| Feb 12, 2021 | Austin ScottR-GA · House | Sale | $15K–50K | Jan 14, 2021 | -97.9% |
| Dec 31, 2020 | Pat RobertsR-KS · Senate | Buy | $1K–15K | Dec 22, 2020 | -96.1% |
| Dec 30, 2020 | Austin ScottR-GA · House | Sale | $15K–50K | Nov 16, 2020 | -94.5% |
| Dec 30, 2020 | Austin ScottR-GA · House | Sale | $1K–15K | Nov 13, 2020 | -94.1% |
| Aug 29, 2014 | Austin ScottR-GA · House | Sale | $1K–15K | Sep 4, 2013 | +141.2% |
4 members have traded PLUG: Austin Scott, Daniel S. Goldman, Chris Jacobs, Pat Roberts.
PLUG questions and answers
Are insiders buying PLUG stock?
Between Aug 1, 2026 and Oct 29, 2026, 1 PLUG insider filed 3 sales worth $510K on SEC Form 4, and no open-market purchases; 3 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own PLUG?
7 13F filers hold PLUG among their 50 largest positions, worth $8.6M combined. The biggest bets by portfolio weight are Headlands Technologies LLC (0.5%), Masters Capital Management LLC (0.4%) and Kieckhefer Group LLC (0.2%). In their latest 13Fs, 2 managers opened a new position and 0 added to one.
Has Congress traded PLUG?
Members of Congress have disclosed 18 PLUG trades since 2013, 0 purchases and 1 sale in the past year; the latest was Austin Scott (R-GA), selling $1K–15K on Jul 31, 2024.
Who is the largest holder of PLUG?
Among 13F filers, Headlands Technologies LLC reports the largest PLUG position, $4.8M (1,763,652 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Headlands Technologies LLC's: 0.5% of its portfolio.
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